Copolymerization of lactones and bioaromatics via concurrent ring-opening polymerization/polycondensation

Abstract

Concurrent ring-opening polymerization/polycondensation of lactones and bioaromatic hydroxy-acids yields random copolymers with improved and controlled thermal properties.

Ring‐opening polymerization and copolymerization of cyclic esters catalyzed by amidinate aluminum complexes

“…A variety of methods have been reported to produce these kinds of polyesters, including enzymatic polymerization, anionic and cationic polymerization, polycondensation, and ring‐opening polymerization (ROP) . The well‐controlled ROP of cyclic esters, such as ε ‐caprolactone (CL) and lactide (LA), catalyzed by organometallic catalysts, produces polyester materials with high molecular weight, low polydispersity, and controlled microstructure due to the living behavior of these catalysts .…”

Microwave-Assisted Knoevenagel-Doebner Reaction: An Efficient Method for Naturally Occurring Phenolic Acids Synthesis

“…The industrial interest for naturally occurring PAs is increasing due to the emergence of promising ferulic- and sinapic-acid–based functional additives [e.g., bisphenol A substitutes (Jaufurally et al, 2016 ; Janvier et al, 2017 ), antioxidants (Reano et al, 2015 , 2016b )], anti-UV molecules (i.e., sinapoyl malate), (Allais et al, 2009 ; Dean et al, 2014 ; Luo et al, 2017 ) and renewable polymers and resins (Kreye et al, 2013 ; Ouimet et al, 2013 ; Barbara et al, 2015 ; Pion et al, 2015 ; Hollande et al, 2016 ; Maiorana et al, 2016 ; Reano et al, 2016a ; Menard et al, 2017 ; Nguyen et al, 2017 ). Encouraging works have been conducted for the biosourcing of PAs.…”

Using One Photoredox Catalyst to Simultaneously Mediate Two Different Polymerizations for Photo‐Triggered Multi‐Component Orthogonal Polymerizations

“…The second approach is based on the post‐polymerization modification using MCRs to produce desired functional polymers. However, it should be noted that multi‐component orthogonal polymerizations (MOPs) (two different photopolymerizations can be performed in an orthogonal fashion) [ 19–22 ] have been scarcely investigated because of the low compatibility and undesired side reactions. To successfully implement MOPs in one‐pot, each polymerization must ensure the chain growth process with negligible interference.…”